01-02-2021, 12:40 AM
I couldn't agree more teamvisegrip! The plug doesn't look like oil burn, but rich. I swapped the outer most cylinder plugs with each other. The gaps were good. I'm going to check the exhaust temps with an IR gun and then ride it around today once the temps warm up.
LR, I agree that the road I was riding wasn't that steep or high and was surprised by the lack of high end power which led me to think this bike was strangled for air and fuel. If the suspect cylinder is still running rich, I'll check the spark and drop a scope in the cylinder. I'm assuming a typical plug check won't cause harm, meaning ground the plug to the cylinder and hit the starter which will cause the bike to probably run on 3 cylinders for the test and look for a good blue spark? I don't want to smoke anything electrical running this test. Thanks again for everyone's comments!
LR, I agree that the road I was riding wasn't that steep or high and was surprised by the lack of high end power which led me to think this bike was strangled for air and fuel. If the suspect cylinder is still running rich, I'll check the spark and drop a scope in the cylinder. I'm assuming a typical plug check won't cause harm, meaning ground the plug to the cylinder and hit the starter which will cause the bike to probably run on 3 cylinders for the test and look for a good blue spark? I don't want to smoke anything electrical running this test. Thanks again for everyone's comments!